BLETHER is a playable word

blether Scrabble® Dictionary

verb
blethered, blethering, blethers
to blather
57 Playable Words can be made from "BLETHER"
   2-Letter Words (8 found)
   3-Letter Words (16 found)
   4-Letter Words (19 found)
   5-Letter Words (10 found)
   6-Letter Words (3 found)
   7-Letter Words (1 found)